package com.example.chapter2.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author Kunzite
 */
public class SessionInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
//        System.out.println(request.getRequestURI());
//        //登录不做拦截
//        if(request.getRequestURI().equals("/user/login") || request.getRequestURI().equals("/user/login_view"))
//        {
//            return true;
//        }
//        //验证session是否存在
//        Object obj = request.getSession().getAttribute("_session_user");
//        if(obj == null)
//        {
//            response.sendRedirect("/user/login_view");
//            return false;
//        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
